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Guidance - Distribution Groups

Recommendations for creating MS Exchange Distribution Groups (Lists) -

  • Type - Distribution Group
  • Owners - Assign the person requesting the group as the owner or have the requester designate an owner(s)
  • Membership -
    • Group owner explicitly specifies members list
    • Limit in number to the greatest extent possible
  • Membership Approval -
    • Approval required to join the group - Closed
    • Approval required to leave the group - Open
  • Delivery Management -
    • Only senders inside my organization (default setting)
    • Group owner explicitly specifies permitted senders 
    • Permitted senders should be limited to the greatest extent possible

Configuration instructions are available here.


  • Distribution Group owners are able to manage these settings and others using the Outlook Web App (OWA) 
  • To set Senders inside and outside of my organization, contact the Enterprise Messaging Team
  • These recommendations only apply to Distribution Groups and not to Mail-Enabled Security Groups